@misc{indiciae1ffdd25e2f7b,
  title = {Fidelity and persistence of Ring-billed ( Larus delawarensis ) and Herring ( Larus argentatus ) gulls to wintering sites},
  author = {Daniel E. Clark and Kiana K. G. Koenen and Jillian J. Whitney and Kenneth G. MacKenzie and Stephen DeStefano},
  year = {2016},
  doi = {10.1675/063.039.sp120},
  url = {https://pubs.usgs.gov/publication/70187360},
  note = {Source identifier: 70187360}
}